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NASA's Nancy Grace Roman Space Telescope is already sending data to Earth even though its regular scientific observations have not yet started. NASA has been testing whether ground stations can handle the data downloads once the telescope begins full operations. The trials involved ground stations from three space agencies, including Japan's JAXA, as preparations continue ahead of the mission's science phase.

Astronomers report groundbreaking observations of a dead, or 'zombie', star that flashes toward Earth repeatedly because a vast cloud of ejected gas — likened to a cosmic 'fart' — makes it wobble on its axis. The study offers a rare look at how material thrown off by a dying star can alter its rotation and orientation, producing the regular flashing pattern detected from our planet.